All terrain vehicle



FIG. 1 is a perspective view of the all terrain vehicle of the present design;

FIG. 2 is a top view thereof;

FIG. 3 is a front view thereof;

FIG. 4 is a rear view thereof;

FIG. 5 is a left side view thereof; and,

FIG. 6 is a right side view thereof.

The bottom view is omitted and not seen in use. 

The ornamental design for an all terrain vehicle, as shown and described. 